Questions tagged [accounts]

Ethereum has two types of accounts: externally owned user accounts, controlled by private keys, and contract accounts, controlled by their contract code.

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Which one is more secure and easier to mange among eth.accounts.create, personal.newAccount & eth.accounts.wallet.add

Here are what I knew about them: eth.accounts.create: Generate an address and private key for transaction but did not stored in anywhere. personal.newAccount: Create an account under node, so that ...
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Geth + Web3 | web3.eth.getAccounts() returns undefined

I have follow this SO answer for sending ERC20 tokens from 1 address to another. I am running into an issue where I am receiving an error that my from address is invalid Error: Error: ...
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How does UTXO fit into this schema?

I have been rather confused by the eponymous web3 stack introduced by the Web3 Foundation. https://wiki.web3.foundation/en/latest/tech_stack/Layer-0/platform_neutral_computation_description_language/ ...
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Ethereum node vs Ethereum accounts

From my understanding, one Ethereum node can have many accounts and only one of the account can perform mining in each node. So, my question will be what are the usage of other accounts in the node ...
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247 views

Importing accounts into geth from metamask

I Have entered into my geth console geth eth.accounts ["0xf844f0d7acb0d01bf66ffd81809fb96b2236abce", "0xc8d94cb87173fc94c4b165e44a5fc0b047618044", "0x6a0ef1a429c3570cb342963d309dd5aaa9e49cd4", "...
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410 views

web3.eth.personal.newAccount + JSON RPC error connected to ropsten in metamask

Updated: I have a function where I init web3 and included web3.eth.personal.newAccount at the bottom of the function to create a new account. initWeb3: function() { if (typeof web3 !== '...
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What happens if the “balance” of the address which sends “address.transfer(amount) is ” zero "?

Consider the balance of the address that sends address.transfer(amount); to receive the amount is zero. For example we have following address with balance of zero: web3.eth.getBalance('0x123').then(...
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UPDATE: (I need to run testrpc before running the code) Problem with signing a message with “web3.eth.personal.sign” or “web3.eth.sign”

I use exactly the example of web3js (here) to sign a text. So, I generated a .js file asfollows : Web3 = require("web3") web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); ...
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Can I add my own fields to JSON files in the keystore directory?

I need to add a few fields to JSON v3 wallet file, can I do it ? What is Ethereum's policy on this? For example, to add account name I would do something like this: { "address": "...
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1k views

Getting “no key for given address or file” error when trying to unlock account in geth

I'm trying to unlock an ethereum user account using geth, but am getting an error message that doesn't make sense to me. Here's what I do: 1) I start the geth console connected to the ropsten ...
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829 views

How to use not personal account web3

In my previous post I got answer but still I need some clarifications let say when deploying contract with node js we have this line try { web3.personal.unlockAccount(web3.eth.coinbase, ...
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395 views

Web3.js unable to unlock account to call smart contract

I am using web3.js 0.20.6 and I want to unlock an account to execute a smart contract method on a private blockchain. The account is used to pay for the gas. I have used the following code to unlock ...
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275 views

how to import UTC-JSON file through web3-eth methods

hey I am working on ethereum wallet. in this i want to import my account through UTC json file, but i didn't find any solution for this in web3-eth command someone can please help to find out the ...
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45 views

Generate Public Key

I use the command: > eth.getTransaction("0xac844bd1107761fec3abe2f55bf739f0e7cc6dd1cd169a60176bfb22 9826b5a8") Where the brackets contain the hash of the successful transaction. This is what I ...
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2answers
323 views

How to create unique contribution addresses for a referral system by smartcontract

I ran into some trouble with my smartcontract. I want to be able to allocate referral tokens to each person who participated in the ICO referral program. In order to do this, the smart contract must ...
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118 views

When I recreate an Account using a Mnemonic, will it also bring back its private key?

I guess my Question is straight-forward, I would like to know if using a Mnemonic to recreate or import an Ethereum (external) Account will actually make or "bring back" the whole KeyPair (public and ...
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JSON RPC get address balance

I'm trying to get the ether balance for any ethereum address. I've set up a node with the Ethereum daemon, but as far as I can tell, using eth_getBalance you can only get the balance of your own ...
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2answers
54 views

What do I need to log into Geth?

I had to reformat my OS since the last time I did any mining and so I don’t have any of the data originally on my HD. I do have my Geth account # and assuming I can remember my password is that ...
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1answer
60 views

When closing node (geth ropsten) I cannot save created accounts

I am pretty new to this. I downloaded the ropsten blockchain using a geth command line. Then, using Truffle, I created an account, but when I closed my node (ctrl - c on the geth command line) and ...
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241 views

Local account to local node

If I create my wallet / accounts client-side with web3.eth.accounts how can I "publish" them on my local node? For example, I want to send some ether with an eth faucet to the first created account. ...
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2answers
341 views

How can I synchronize account between geth servers?

I have setup geth in 2 servers as a private testing Etheruem environment. In the 1st server, I have created accounts. For the 2nd server, I would like to build as a node to attach the 1st server. ...
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69 views

invalid character 'personal_signAndSendTransaction' after top-level value

I am getting this error when I try to sign in to one of my accounts using Mist. If I try to unlock the account using the console I get this error: invalid character 'g' after top-level value